baber/WOPTO huggingface dataset:
Patent GB-1209447-A (GB)
Title: Improvements in or relating to cold cathodes
IPC: H01J1/308
Filed: 1967-11-20
Abstract: 1,209,447. Electroluminescence. NIPPON ELECTRIC CO. Ltd. 20 Nov., 1967 [19 Nov., 1966], No. 52677/67. Heading C4S. [Also in Division H1] A cold cathode comprises a light-emitting diode 1, 2, a layer 5 of a P-type group III-V or II-VI compound semi-conductor, e.g. GaAs, InAs or ZnTe, formed on the light-emitting surface of the diode, and a monatomic layer 6 of caesium covering the layer 5. The lightemitting diode may consist of a PN junction of GaP, the N-type region 1 containing 1 x 10<SP>9</SP> Te/cm.<SP>3</SP> and the P-type region 2, on which layer 5 is formed, may be 10Á thick and have a Zn surface concentration of 5 x 10<SP>9</SP>/cm.<SP>3</SP>. Electroluminescence generated at the PN junction upon applying potentials to electrodes 3, 4 is of sufficient energy to cause hot electrons to be produced in layer 5 which are released as photoelectrons through Cs layer 6. In the manufacture of the cathode the GaP PN junction diode may be independently heated to 1000‹ C. in an evacuated (10<SP>-10</SP> mm. Hg) enclosure and As crystals also in the enclosure are locally heated to give an arsenic vapour at 0À9 atmospheric pressure for 10 hours whereby a GaAs layer is formed on the P-type GaP and phosphorus vaporized. After quickly cooling to room temperature the Cs monolayer is evaporated on. The cold cathode may be used in a cathode-ray tube or in small-current-amplifying tubes.
Patent GB-1203128-A (GB)
Title: A device for the automatic focusing of slide projectors
IPC: G03B21/53
Filed: 1968-11-07
Abstract: 1,203,128. Slide projectors; focusing. ERNST LEITZ G.m.b.H. Nov. 7, 1968 [Nov.18, 1967], No.52762/68. Heading G2A. [Also in Division G1] An automatic focusing device for slide projectors comprises an optical system which directs a beam 4 of light for reflection by a slide 7 on to a double photo-electric cell 16 in a differential circuit for controlling the focusing of the slide, a double field lens 13 splitting the beam into two separate beams. Reversible motor 19 in the  differential circuit drives rack and pinion focusing devices 20, 21, until the reflected beam falls on the dividing line of the lenses 13a, 13b, the slide then being focused. Surfaces 15a, 15b, completely certain the split beams 4a which may be focused or non-focused.
Patent GB-1325790-A (GB)
Title: Material for direct thermoelectric energy conversion with a high figure of merit
IPC: H01L35/22
Filed: 1971-11-15
Abstract: 1325790 Thermoelectric material M C NICOLAOU 15 Nov 1971 [4 Jan 1971] 52866/71 Heading C7A [Also in Division H1] An alloy or solid solution composition comprises Mg 2  Si, Mg 2  Sn and Mg 2  Ge, in amounts to give a chemical formula Mg 2  Si x  Ge y  Sn i-x-y, in which neither x nor y is zero nor x + y is unity, with optional additions of doping materials (e.g. Cu, Ag, Cd, Zn, Al, Ga, In, Au, Si, Na, K, borides, silicides germanides or stannides of Si, Na and K or Mg boride to give a p-type material or P, As, Sb Bi, S, Se, Te, Cl, Br or I as such or as compounds to give an n-type material). The compositions may be made by melting with stirring and thermal homogenization of the melt or by malsingthe component compounds by melting, crushing the solidified products, mixing and hot pressing or cold pressing and sintering. The composition is useful for direct thermoelectric energy conversion and has a high figure of merit. The material may preferably be used in a single crystal form.
Patent GB-1522890-A (GB)
Title: Transfer device for transferring liquids from vials to a container of intravenous liquid
IPC: A61J1/06
Filed: 1976-12-20
Abstract: A container (10) with a nutrient component (16) is sealed by a stopper (22). In use, the container (10) is pushed, with its opening pointing downwards, over a supporting structure (46) for a cannula (44) on a bottle containing solvent (36). The cannula end (58) projecting beyond a flange (56) of the supporting structure (46) pierces through an elastomeric cap (60) and the container stopper (22) when the container (10) is put in place. As a result, the nutrient component (16) flows through the cannula (44) into the solvent (36). This device can be used to mix medical nutrient solutions in a quick and sterile manner. <IMAGE>
Patent GB-1415301-A (GB)
Title: Enzyme-containing granule
IPC: C11D3/37
Filed: 1971-11-18
Abstract: 1415301 Detergents containing enzymes UNILEVER Ltd 13 Nov 1972 [18 Nov 1971] 53579/71 Heading C5D An enzyme-containing granule for use in fabric-washing detergent compositions comprises a core of carrier material, which is a solid water-soluble inorganic alkali metal salt, an enzyme, affixed to the core by means of a cohesive non-ionic detergent with a melting point in the range of 0-30‹ C. enrobing the core, an enrobing outer layer comprising a polymer of an unsaturated mono- or polycarboxylic acid, or a copolymer of these with another different unsaturated monomer, the polymer being present in an amount of from 0À1 to 5% by wt. of the granule. The polymers may be in the acid form (including the anhydride) or may be converted into their partial alkali metal salts, their amides and esters. Suitable polymers are polyacrylic acid, polymethacrylic acid and polymaleic acid. Copolymers are produced with an alpha-olefin, e.g. ethylene or a vinyl compound. The polymer has a molecular wt. of 10,000- 500,000. The cohesive non-ionic detergent is selected from condensates of C 8 -C 18  aliphatic carboxylic acids with ethylene oxide (5-50 units), condensates of C 8 -C 24  aliphatic alcohols with 5 to 50 units of ethylene oxide, condensates of C 6 -C 18  alkyl phenols with 5 to 50 units of ethylene oxide and others. The core material may be a detergency builder such as sodium tripolyphosphate or sodium carbonate or other detergent ingredient such as sodium sulphate or sodium perborate. The granules may be prepared by spraying the cohesive non-ionic detergent at a temperature of 30‹ to 60‹ C. on to the granulated core material, dusting the sprayed granules with enzyme powder, and spraying on to the dusted granules at a temperature of 50‹ to 70‹ C. a mixture of the non-ionic detergent and the polymer. Alternatively a slurry of the enzyme in the cohesive non-ionic detergent may be sprayed on to the core material. The granules are dry mixed with (a) anionic non- ionic, zwitterionic or amphoteric surfactants, or mixtures thereof (b) inorganic and/or organic detergency builders and (c) bleach and other conventional detergent ingredients to provide a formulation containing 1 to 25% by wt. of the granules.
Patent GB-1270428-A (GB)
Title: Larvicide
Inventor: CARDARELLI N F
IPC: A01N25/10
Filed: 1969-11-03
Abstract: 1,270,428. Rubber/larvicide compositions. B. F. GOODRICH CO. 3 Nov., 1969 [1 Nov., 1968], No. 53709/69. Heading A5E. [Also in Division C3] A larvicidal composition comprises a vulcanized elastomeric ethylene-propylene-diene monomer (EPDM) rubber compounded and cured to have a specific gravity of less than 1.0 at 25‹C, and having dissolved therein 3.0-20.0 parts by weight of an organic phosphorothioate per 100 parts by weight of elastomeric rubber, there also being present 2-8 parts by weight of carbon black per 100 parts by weight of elastomeric rubber. The phosphorothioate preferably has the general formula wherein R is alkyl (C 1-5 ). Preferred phosphorothioates are O,O,O',O' (tetramethyl) O,O'- dithio-p-phenylene phosphorothioate, O,O- diethyl O-phenylmethyl sulfinyl phosphorothioate, O,O-diethyl O-(3,5,6-trichloro-2- pyridyl) phosphorothioate, O,O-dimethyl O- diethylmercaptosuccinato phosphorothioate or O,O-dimethyl O-(4-methylthio)-m-tolyl) phosphorothioate. The larvicidal EPDM rubber composition may be cured or in vulcanized form and in this respect the matrix may be cured for 40 to 60 minutes at 300-280‹F. The composition may be in the form of pellets, dusts or strips which by virtue of their specific gravity will float on the surface of a body of water.
Patent GB-1418041-A (GB)
Title: Method of manufacturing integrated magnetic memories
IPC: H01F41/14
Filed: 1972-11-21
Abstract: 1418041 Magnetic storage devices THOMSONCSF 21 Nov 1972 [23 Nov 1971] 53807/72 Heading H3B An apertured magnetic thin film storage device is manufactured by applying a mask, Fig. 1, having opaque zones defining windows 10, 11, 12 and passages 13, 14 over a layer of photosensitive resin covering a metallic substrate; exposing and removing the resin so that the substrate 1 is bared in the regions between the window and passage zones 10-14, Fig. 3, successively depositing a layer of copper 3 and a layer of permalloy 4 on the bared regions, Fig. 4; further exposing portions of the remaining resin through a second mask so that the substrate is bared at the passage zones 13 and 14, Fig. 5, and depositing a further layer of copper over the whole of the exposed metallic parts, Fig. 6. The substrate 1 is then removed, and the formed assembly is coated with a resin layer on both major surfaces which is subsequently selectively exposed in accordance with the wiring pattern required. The conductor pattern is then deposited and the copper removed, the interstices so formed being filled with a flexible insulating varnish. The method may be applied to the construction disclosed in Specification 1,239,824.
Patent GB-1095700-A (GB)
Title: Reinforcing thermoplastics
Inventor: EDWARDS JOHN WILMAR
IPC: C08F2/44
Filed: 1965-12-20
Abstract: Reinforced thermoplastic organic polymeric material is prepared by incorporating a mineral filler into the thermoplastic material, (i) the mineral filler having been first treated with a silane containing one or more reactive groups, and a compatible polymer containing groups reactive with the silane having been either coated on the silane treated filler or incorporated in the thermoplastic material, or (ii) an adduct of such a silane and such a polymer having been coated on the filler before incorporation thereof in the thermoplastic material, or such an adduct having been incorporated in the thermoplastic material before incorporation of the filler therein.  Specified thermoplastic polymers are polyethylene, polypropylene, polybutene-1, poly - 4 - methylpentene - 1, polyamides, polyoxymethylenes, polyethylene terephthalate, polystyrene, copolymers of styrene with butadiene or acrylonitrile, polyvinyl chloride and copolymers of vinyl chloride with vinyl acetate, methyl and ethyl esters of acrylic, methacrylic, maleic and fumaric acids, acrylonitrile, methacrylonitrile, maleic anhydride or vinylidene chloride.  Plasticizers may be present.  Specified fillers are glass fibres, asbestos, glass plates and mica. Specified silanes are vinyl trichlorosilane, g -aminopropyl triethoxysilane, vinyl triethoxysilane, vinyl triacetoxy silane, ethylaminotrichlorosilane, a -glycidoxy propyl trimethoxy silane and methacryloxy silanes. Specified reactive polymers are those containing epoxy, carboxyl, carboxylic anhydride, amino and hydroxyl groups; examples of polymers compatible with ethylene and propylene polymers being glycidyl methacrylate/ethylene copolymers and propylene polymers modified with maleic anhydride. In Examples (1) glass fibres treated with an adduct of an ethylene/glycidyl methacrylate copolymer and g -aminopropyl triethoxysilane are compounded with polypropylene, and (2) glass fibres treated with g -aminopropyl triethoxysilane are compounded with a mixture of polypropylene and maleic anhydride modified polypropylene.
Patent GB-1467642-A (GB)
Title: Electric warm air drying comb
IPC: A45D20/50
Filed: 1974-11-15
Abstract: 1467642 Hair driers CHING HING CHIU 15 Nov 1974 [20 Nov 1973] 53846/73 Heading A5R A hair drier comprises a hot air blower having a main housing portion 10 including an air inlet 18 and a further housing portion 16 including an elongated air outlet 36, air being drawn through the blower by a fan 19, 20 and passing through a duct in the main housing portion containing a heater 28, which duct is formed in part by a tubular projection 34 of the housing portion 10 on which is rotatably mounted a tubular portion 35 of the further housing portion 16 so that a comb 44 carried by the main housing portion can, by rotation of the further housing portion, be positioned, within the air stream issuing from outlet 36 or clear thereof. Arcuate baffles 38 and an arcuate end wall 16a of housing portion 16 deflect the air flow through approximately 90‹. The tubular portion 35 mounts a housing 48 into which extends a rod 49 having a thumbpiece 49a and mounting a cam 47 which bears against a plate carrying a pin (51, Fig. 4a, 4b, not shown) selectively engageable in one of a plurality of apertures (51a Fig. 5 not shown) in the tubular projection 34 to retain the housing portion 16 in its adjusted position on the main housing portion 10. The comb 44 is carried by a bracket 40 screwed to the main housing portion 10 and a spring 53 coupled between the bracket and housing portion 16 biasses the housing portion 16 for rotation to a position in which the air outlet 36 is aligned with the comb.
Patent GB-1419803-A (GB)
Title: Detergent composition
IPC: C02F1/40
Filed: 1973-11-21
Abstract: 1419803 Dispersing oil slicks BRITISH PETROLEUM CO Ltd 12 Nov 1974 [21 Nov 1973] 53923/73 Heading C1C Compositions, used to disperse oil spilt on water, comprise an ester of a polyoxyethylene glycol and a C 10-24  fatty acid, an organic sulphate or sulphonate detergent and an alcohol or glycol of molecular weight 90-250.
Patent GB-1201165-A (GB)
Title: Fibre glass wheelbarrow
Inventor: HAMLEY RICHARD EDWARD
IPC: B62B1/14
Filed: 1967-11-27
Abstract: 1,201,165. Wheelbarrows. R. E. HAMLEY. 8 Nov., 1968 [27 Nov., 1967], No. 53962/67. Heading B7B. A wheelbarrow has a body of fibre glass reinforced resin material secured to a frame mounted on a two-wheeled axle, by means of screws secured to plates embedded in the plastics material.
Patent GB-1433840-A (GB)
Title: Method and apparatus for the reproduction of documents by transfer of electrostatic charges
IPC: G03G15/18
Filed: 1973-11-21
Abstract: 1433840 Transferring electrostatic latent images LA CELLOPHANE 21 Nov 1973 [8 Dec 1972] 54093/74 Heading G2H Electrostatic latent images formed on photoconductive belt 11 are transferred to dielectric copy web 5, for development and fixing, by passage of the belt and web around respective roller electrodes 1, 4 and application of a charge to the electrode I by corona device 12. Auxiliary capacitor 8 is connected between the electrodes to make certain that the potential difference between the electrodes is acceptably close to uniform, with a capacitance considerably higher than that of the capacitor formed by the electrodes. Preferably the capacitor 8 has a capacitance at least 100 times greater than that of the capacitor formed by the electrodes.
Patent GB-1275482-A (GB)
Title: Abrasive cut-off machines
IPC: B24B27/06
Filed: 1969-05-30
Abstract: 1275482 Severing by grinding CARBORUNDUM CO 30 May 1969 [13 June 1968] 54310/71 Divided out of 1275481 Heading B3D The disclosure is substantially identical with that of Specification 1,275,481 but the claims are directed to a cut off machine comprising a base 2, a bed 24 mounted on the base for longitudinal movement relative thereto, and an upstanding guard 4 mounted on the base beside the bed, the guard having an opening 6 for receiving a workpiece W and a slot 112 aligned with the opening 6. An oscillatory frame 34 is mounted on the bed 24 for swinging movement about a horizontal axis 32, and carries an arbor 58 which extends through the slot 112 and in turn carries an abrasive cut-off wheel 60. Means are provided for moving the bed 24 to move the arbor 58 lengthwise of the slot 112 and so move the wheel 60 into or out of the workpiece.
Patent GB-1435800-A (GB)
Title: Solid state starting and operating system for a constant combustion engine
IPC: F02C7/26
Filed: 1973-11-23
Abstract: 1435800 Automatic control of starting a gas turbine FORD MOTOR CO Ltd 23 Nov 1973 [20 Dec 1972] 54502/73 Heading G3N A starting and operating arrangement for a gas turbine engine comprises a logic network which inter-connects various sensing devices and timers and controls the operation of the starting mechanism so that the engine can be started only when the sensing devices indicate correctly and will be shut-down if maloperation occurs. In the system described NOR logic is used throughout to control driver stages supplying the starter relay (28) air pump relay (44), fuel solenoid (88) and ignition system (132). The parameters monitored to control these include a fuel pressure switch (24), a first speed sensing switch (46) a second speed sensing switch (64) a combustion indicator switch (72), temperature switch (116), accessory failure switch (124), oil pressure or temperature switch (138). The starting sequence is initiated by a manually operated start switch (50) which causes a starter timer (74) to time out after which time the engine should have started and combustion be indicated by closure of the combustion switch (72). The engine accelerates through the first speed level, typically 10% of design speed when the first speed switch (46) opens. The second speed sensing switch (64) opens at about 44% of design speed and this de-energizes the air pump, starter and ignition circuits. If a flame-out occurs the combustion switch (72) opens and causes a relighting timer (100) to be operated together with the ignition circuit when the second speed sensing switch (64) closes. A selector switch is included to inhibit relighting if desired.
Patent GB-1219418-A (GB)
Title: The manufacture of fibres, filaments and films form molten materials
IPC: D01F9/08
Filed: 1967-12-04
Abstract: 1,219,418. Continuous casting. MONSANTO CO. 4 Dec., 1967 [6 Dec., 1966], No. 55120/67. Heading B3F. [Also in Division C1] Fibres, filaments or films, including rods, ribbons or wires are formed by streaming a melt through an orifice, e.g. by extrusion through a ruby die 18, and stabilizing the stream against break-up before solidification (by forming a thin film on it by reaction, decomposition or deposition as described in Specification 1,153,577) and also applying a deceleration, e.g. by passage through a denser or counterflowing atmosphere or by applying an electrostatic field or by interposition of a plate 36, at a position downstream of a point where if applied it would disrupt the stream and upstream of a point where tensile forces would break it up if the deceleration were not applied. The melt may be non-metal (see Division C1). In the spinning apparatus shown, material such as Pb-Sn is melted, e.g. under vacuum, by resistance heaters 20 or an induction heater, in a chamber 16 and the temperature monitored by a thermocouple 24. By operation of a valve 26 the chamber may be alternately evacuated and supplied with argon to extrude the melt controllably, through a 100 micron orifice 20 in the ruby jewel 18, into a preevacuated glass column 27, supplied with a spin gas mixture of helium or nitrogen (with a small volume of oxygen) through holes 32 in a ring 30, to form a stabilizing oxide film on the stream. During evacuation (through a connection 34), the bottom of the glass column 27 is temporarily closed and extrusion may start before the introduction of the spin gas. The flow rate of the oxygen into the column may be varied. The stream is decelerated by impact on the collection plate 36 which is adjustable vertically and may be tilted. The continuity of the stream between the melt crucible 10 and the plate 36 may be monitored for determination of spinning conditions by a simple electrical continuity testing circuit, Fig. 3 (not shown). As described in Specification 1,197,972, to avoid undue surface expansion of the stream and subsequent weakening of the stabilizing film, the die orifice 20 may be a short bore, i.e. it may have a minimum cross-sectional area extending over a length less than five times the major dimension of that cross-section. As described in Specification 1,210,920, the drag on the stream due to the spin gas is controlled to prevent it causing deviation of the stream from moving up the stream.
Patent GB-1413192-A (GB)
Title: Method for producing maleic anhydride
IPC: B01J23/888
Filed: 1973-11-28
Abstract: 1413192 Oxidation catalyst KURARAY CO LTD 28 Nov 1973 [4 Dec 1972 (4)] 55141/ 73 Heading B1E [Also in Division C2] Catalysts consist of the oxides of tungsten and phosphorus and, as catalyst promoter, at least one compound of an element belonging to Group IIIA, IIIB or VIII of the Periodic Table or of carbon, silicon, germanium, tin, lead, zirconium, arsenic, niobium or antimony. In one method of catalyst preparation a tungsten compound is first calcined in air to obtain tungsten oxide which is mixed with phosphoric acid diluted with water and a catalyst promoter and the mixture heated to obtain a paste. The paste is moulded and dried to obtain the catalyst which, by subsequent calcination, can be converted to a more stable and active catalyst. The catalyst may be supported on a carrier and the supported catalyst used in situ in the reaction.
Patent GB-1127030-A (GB)
Title: Treatment of ingot moulds
Inventor: HAMMERTON RODERIC HUGH
IPC: C08L61/06
Filed: 1965-12-30
Abstract: 1,127,030. Ingot mould lining. FOSECO INTERNATIONAL Ltd. 29 Dec., 1966 [30 Dec. 1965], No. 5524/65. Heading B3F. [Also in Division C3] The base or bottom-plate of an ingot-mould is treated by applying a layer of a dry powdered composition comprising a finely-divided refractory material and a thermosettable or chemically hardenable synthetic resin. The resin may be a phenol-formaldehyde, phenol-furfuraldehyde, epoxy, amino, silicone or furane resin. The refractory may be mixed with both dry and liquid resins. The resin content of the compitition may be 3-40% wt. The refractory may be sand, dolomite, chamotte, olivine, sillimanite, magnesia, grog, zircon, alumina, or aluminosilicate. The layer may be 1/ 16  to 1/ 8  inch thick. The base or bottom-plate may be heated so as to bond the powder into a coherent layer. The dry composition may be compressed into a sheet before application to the bottomplate.